Island



(NoModeL) J. TAYLOR. I

Manufacture of Flexible Tubes.

No.. 23l,7'36. P ater rted Aug. 31 1880.

WITNESSES INV'ENTIOIRIZV h @LM%@ MPETERS, PNOTULITHDGRAQPNER. WASHINGTON. DUO: I

JAMES TAYLOR, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO GEORGE E. BOYNTON, OF SAME PLACE.

MANUFACTURE OF FLEXIBLE TUBES.

SPECIFICATION forming part of Letters Patent No. 231,736, dated August 31, 1880,

Application filed J une 24, 1880.

To all whom it may concern:

Be it known that 1, JAMES TAYLOR, of the city and county of Providence, and State of Rhode Island, have invented a new and useful Improvement in the Manufacture of Flexible Tubes 5 and I hereby declare that the following is a full, clear, and exact description of the same, reference being bad to the accompanying drawing, forming part of this specification.

; The object of this invention is to so construct a flexible tube that the same will be impervious to gas, not liable to become saturated with gas and thus become ofiensive, or

I5 become stiff and liable to crack and leak.

The invention has especial reference to flexible tubes used for connecting gas-burners with the gas-supply pipes.

The invention consists in the peculiar and :0 novel composition placed between two flexible tubes by which the same are made impervious to hydrocarbon gas and retain their flexibility, and in the peculiar method for pre paring and applying the same to and con- 2 5 structing the tubes, all of which will be more fully set forth hereinafter.

The drawing represents a piece of tube, the part a representing the braided outer covering, the part b a tissue-paper covering, the

0 parte the composition tube, (1 theinner braided tube, and c the wire spiral.

Flexible tubes have heretofore been constructed in various ways, such as partly-vulcanized rubber, with or without interior lining, braided tubes with an interior lining of various compositions, and also braided tubes provided with a metallic lining made flexible by corrugations of the metal tube.

The difficulty with all of these, except the 4o metal-lined tubes, has been that the material is permeated in time by the nitrogen of the coal-gas, and the tubes become very offensive,

the metal lining is liable to crack by constant use, and will then leak and allow the gas to 5 escape into the braided covering, making the tube useless.

To avoid all these difficulties I construct my improved flexible tube of a spiral wire base,

as usual with most of the older tubes, and braid (N0 model.)

upon this a preferably cotton tube. This tube is now thoroughly oiled and a coating of my composition is applied. (The nature of the composition will be more fully described hereinafter.) To protect the composition a spiral layer of soft tissue-paper is wound over the same, and the outer covering is now braided,

in the usual manner, over the same to complete the tube.

The composition, which forms the most es' sential part of this invention, is made by mixing one ounce of alum with one pound of linseed-oil, by dissolving the alum in the oil and thoroughly boiling the same, and then allowing it to cool. Of this mixture four ounces are thoroughly mixed with one pound of molasses and one pound of gum-arabic, the gumarabic being previously dissolved in the molasses, or it maybe dissolved in a small quantity of water.

Another method is to dissolve glue, and 0 when thoroughly boiled pour the same into shallow pans to cool and dry, so as to expel as much of the water as possible. To each pound of this glue add four ounces of the compound of linseed-oil and alum above described, and one pound of molasses, andto the whole one ounce of Venetian turpentine may be added. Into this composition, when warm, the previously-oiled tube is immersed two 'or more times, until a sufficient thickness of the composition is secured. The thinner each coat of composition the better will be the result. I

As soonas one coat of the composition is cold another may be applied, or'when com- 5 pleted the paper may be wound 011 the composition and the outer tube braided on the same.

Flexible tubes so constructed are not liable to crack and hydrocarbon gas is not liable to 9 penetrate. The tube will not become offensive and is not liable to leak.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. Flexible tubes consisting of a central spiral of wire covered by a braided fabric, a composition made of alum, linseed-oil, mo-

lasses, and gum-arabic or glue, a covering of In Witness whereof I have hereunto affixed paper, and an 'outer braided fabric, as an immy name. proved article of manufacture.

2. The herein described composition for JAMES TAYLOR. 5 flexible gas-tubes, the same consisting of alum,

linseed-oil, molasses, and guin-arabic or glue, \Vitnesses: in substantially the proportions herein set JOSEPH A. MILLER, forth. JOSEPH A. MILLER, Jr. 

